Bulbostylis wanderleyana Prata & M.G.López, 2017

4 View FIGURE 4 . Bulbostylis wanderleyana Prata & M.G.López View in CoL , sp. nov.

Type:— BRAZIL. São Paulo: Itararé, 25 April 2000, Prata et al. 859 (holotype ASE! , isotype SP! , CTES! , NY! , UFP! ). Figure 7 View FIGURE 7 and 8 View FIGURE 8 .

This species is similar to Bulbostylis consanguinea (Kunth) C. B. Clarke (1908: 110) in the structure of the inflorescence but differs in having shorter and broader leaves, setaceous involucral bracts, shorter anthers, and a smoother achene surface.

Perennial, cespitose herb, 6.3–50 cm tall, the base light brown, not thickened. Leaves 4.5–(9)15 × 0.3–0.5 cm, 1/4 the length of the scape; leaf blade setaceous, the abaxial face canaliculate, the adaxial face concave, ferrugineous-speckled, the margin scabrous; sheaths 2.5–7 cm long, membranaceous, ferrugineous, the apex oblique, densely hairy, the hairs 3–8 mm long. Scape 3.5(11)–49 × 0.3–0.5 cm, with 8–10 longitudinal ribs, ferrugineous-speckled, glabrous. Involucral bracts 5–6, setaceous, the base dilated, densely ciliate, the 1–2 lowermost longest, 2–5.5 cm long, overtopping the inflorescence. Inflorescence anthelate, compound, 0.5–1.5 × 0.3–4 cm; spikelets 5–8, the central one sessile, the rest on divergent rays, the first order (4)7, 0.2–1 cm long, the second order 1–2, 0.3–0.6 cm long. Spikelets 2–5 × 2–3 mm, ovoid, with 5–8 flowers. Glumes 2–3.2 × 2.3 mm, ferrugineous, the margins reddish, the keel reddish, rounded, naviculate, papery, ciliate, the surface scabrous. Flowers with 3 stamens, the style 1 mm long., the anthers 0.5 mm long., apiculate, with prolonged connective. Achene 1.2 × 0.6–0.8 mm, obovoid, trigonous, narrowed at the base, surface with horizontal waves formed by vertically retangular cells, with style base cylindrical, dark-brown, 1/6 the length of the achene.

Habitat and distribution:— Brazil (the States of Minas Gerais, São Paulo and Paraná) and Argentina. The taxon grows in cerrado and grassland, on sandy soils.

Paratypes: — BRAZIL. Minas Gerais: Poço de Caldas, Represa Bortovan , 14 January 1965, O. Leoncini 462 ( R). Paraná: s.d, Hatschbach, G. 5108 ( MBM) . February 1960, Perreira, E. 5438a ( HB) . November 1964, Dombrowski, L. 834 et al. ( MBM) . São Paulo: Itararé, August 1995, Souza, V.C. 8818 ( ESA, SP) . 24 04 25S, 49 03 09 W, November 1994 ( UEC) GoogleMaps . August 1995, Souza, V.C. et al. ( ESA) . Silveiras, April 1951, Segadas-Viana 3050 ( R) . May 1951, Brade, A.C. 20884 ( R) . ARGENTINA. Missiones, Dep. Gral. Manuel Belgrabnno. Ruta Provincial 17. Campinas de América , cementerio. 21 October 2006, Keller, H.A. 3705 ( CTES) .

Notes: —The species is named in honor of Dr. Maria das Graças Lapa Wanderley, of the Institute of Botany of São Paulo. This species is similar to Bulbostylis consanguinea in the structure of the inflorescence ( Figure 7 View FIGURE 7 ). They differs in the features presented in Table 1 View TABLE 1 as well as those depicted in Figure 8 View FIGURE 8 .